| 摘要 |
PROBLEM TO BE SOLVED: To provide an accelerator capable of suppressing reduction of adhesive property when used to blend with a cement composition for example spraying, especially reduction of adhesive property at low temperature, and capable of adjusting excess aggregation and curing property while achieving acceleration property, and suppressing quick solidification without reducing excellent adhesive property.SOLUTION: An accelerator contains SiOand MgO as a chemical component in calcium aluminate, and a content molar ratio of AlOand MgO as the chemical component (AlO/MgO) of 18 to 60, and the content of molar ratio of SiOand MgO (SiO/MgO) of 2.5 to 7.5. |
